1 files changed, 76 insertions, 0 deletions
diff --git a/src/fw/input.odin b/src/fw/input.odin
new file mode 100644
index 0000000..a3cbe25
--- /dev/null
+++ b/src/fw/input.odin
@@ -0,0 +1,76 @@
+package fw
+
+import "core:c"
+import "vendor:glfw"
+
+Keyboard_Input :: union {
+  Key,
+  Mouse_Button,
+}
+
+Controller_Input :: union {
+}
+
+Keybind :: struct {
+  input: Keyboard_Input,
+  pressed: bool,
+  just_pressed: bool,
+}
+
+key_down_last_frame: #sparse [Key]bool
+key_just_down: #sparse [Key]bool
+
+mouse_down_last_frame: #sparse [Mouse_Button]bool
+mouse_just_down: #sparse [Mouse_Button]bool
+
+@(private)
+_update_input :: proc() {
+  for key in Key {
+    status := glfw.GetKey(window, c.int(key))
+    key_pressed := status == glfw.PRESS
+    key_just_down[key] = key_pressed && !key_down_last_frame[key]
+
+    key_down_last_frame[key] = key_pressed
+  }
+
+  for mb in Mouse_Button {
+    status := glfw.GetMouseButton(window, c.int(mb))
+    mouse_pressed := status == glfw.PRESS
+    mouse_just_down[mb] = mouse_pressed && !mouse_down_last_frame[mb]
+
+    mouse_down_last_frame[mb] = mouse_pressed
+  }
+}
+
+is_keybind_down :: proc(keybind: Keybind) -> bool {
+  switch val in keybind.input {
+  case Key:
+    return glfw.GetKey(window, c.int(val)) == glfw.PRESS
+  case Mouse_Button:
+    return glfw.GetMouseButton(window, c.int(val)) == glfw.PRESS
+  }
+
+  assert(false)
+  return false
+}
+
+is_keybind_just_down :: proc(keybind: Keybind) -> bool {
+  switch val in keybind.input {
+  case Key: return key_just_down[val]
+  case Mouse_Button: return mouse_just_down[val]
+  }
+
+  assert(false)
+  return false
+}
+
+get_mouse_pos :: proc() -> (mouse_pos: Vec2) {
+  w_width, w_height := glfw.GetWindowSize(window)
+  mx, my := glfw.GetCursorPos(window)
+
+  mouse_pos = Vec2{f32(mx), f32(mx)}
+  mouse_pos /= Vec2{f32(w_width), f32(w_height)}
+  mouse_pos *= Vec2{f32(framebuf.color.size.x), f32(framebuf.color.size.y)}
+  // mouse_pos += state.camera.target
+  return
+}